What shoes don't cover your feet and don't breathe? It's for dad.
Breathable mesh sports shoes or hiking shoes are relatively breathable and do not cover their feet, but their warmth is relatively poor. In itself, he is only suitable for spring and autumn, because he has more mesh, which improves the air permeability. On the contrary, his warmth retention will be reduced. If your father is sweaty, it's basically okay to wear this.